septuple

septuple (not comparable)

1. Seven times as much; sevenfold.
   • 1896, Lafcadio Hearn, Kokoro: Hints and Echoes of Japanese Inner Life, Boston: Houghton, Mifflin, Chapter 8, p. 154,

     [Japan] will not remember our American and English missionaries as she remembers even now those great Chinese priests who once educated her youth. And she will not preserve relics of our sojourn, carefully wrapped in septuple coverings of silk, and packed way in dainty whitewood boxes, because we had no new lesson of beauty to teach her,—nothing by which to appeal to her emotions.

   • 1984, Keri Hulme, The Bone People, Penguin, 1986, Chapter 5, p. 234,

     He is woozy with cold and a septuple whisky […]

septuple (third-person singular simple present septuples, present participle septupling, simple past and past participle septupled)

1. (transitive) To multiply by seven.
   • 1615, Thomas Adams, The Blacke Devil or The Apostate, Together with The Wolfe Worrying the Lambes, p. 2, London,

     […] hee is rid of the Deuill. Now he that is quit of so bad a Guest, shall septuple his owne woes by his re-entertainment.

   • 1833, John Herschel, A Treatise of Astronomy, London: Longman, Rees, Orme, Brown, Green, & Longman, Chapter 8, pp. 277-278,

     The intensity of solar radiation is nearly seven times greater on Mercury than on the earth, and on Uranus 330 times less; the proportion between the two extremes being that of upwards of 2000 to one. Let any one figure to himself the condition of our globe, were the sun to be septupled, to say nothing of the greater ratio!

2. (intransitive) To increase by a factor of seven.
   • 1980, Landon Y. Jones, Great Expectations: America and the Baby Boom Generation, New York: Ballantine, Chapter 17, p. 262,

     […] Levi Strauss had caught a wave. Between 1962 and 1970, its sales and net profits grew fivefold and between 1970 and 1977 its sales again quintupled while profits almost septupled.

septuple (plural septuples)

1. A set of seven.
   • 1851, Edward Hitchcock, The Religion of Geology, Boston: Philips, Sampson, Lecture 4, p. 132,

     If we suppose the limited region of Central Asia, where man existed, to have been deluged, and pairs and septuples of the most common animals in that region only to have been kept alive in the ark, the entire account will harmonize with natural history.

2. A sevenfold measure.
   • 1990, Irving Weinman, Virgil’s Ghost, New York: Fawcett Columbine, Chapter 2, p. 91,

     Frozen, the vodka poured like heavy glass. A septuple? Why not.

• supplete

septuple (plural septuples)

1. seven-time

• “septuple” in le Trésor de la langue française informatisé (The Digitized Treasury of the French Language).